--- _id: '44312' abstract: - lang: eng text: "Zusammenfassung\r\n Aufgrund aktueller Transformationsprozesse kommt der automatisierten und ressourceneffizienten Fertigung hochfester Leichtbauteile eine steigende Bedeutung zu, beispielsweise im Flugzeug- und Fahrzeugbau. Für kleine Losgrößen bietet sich hier insbesondere das Fertigungsverfahren des Drückwalzens an. Der konventionelle, industriell genutzte Drückwalzprozess stößt allerdings aufgrund der Prozesskomplexität hinsichtlich der Reproduzierbarkeit an seine Grenzen. Dies wird in der Praxis teilweise durch personengebundenes Erfahrungswissen kompensiert. Auch ist es nicht möglich, Bauteileigenschaften definiert einzustellen. Aus diesem Grund bietet der Einsatz einer neuartigen Eigenschaftsregelung Chancen zur Weiterentwicklung des Fertigungsprozesses und die Möglichkeit zur Prozessautomatisierung. Hier werden die Werkzeugbahnen abhängig einer Online-Eigenschaftsmessung über eine zusätzliche Reglerkaskade manipuliert. Die Entwicklung einer solchen Eigenschaftsregelung erfordert den Einsatz geeigneter, modellbasierter Entwurfsmethoden. In diesem Beitrag wird daher ein regelungstechnisches Systemmodell für das Drückwalzen metastabiler austenitischer Edelstähle vorgestellt. Das Simulationsmodell weist aufgrund seiner Echtzeitfähigkeit neben dem Einsatz als reines Entwurfsmodell weitere Nutzungsmöglichkeiten z.B. in Beobachtern auf und grenzt sich somit von domänenspezifischen Simulationstools wie der FEM ab." author: - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: Kersting L, Arian B, Rozo Vasquez J, Trächtler A, Homberg W, Walther F. Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Bauteilfertigung. at - Automatisierungstechnik. 2023;71(1):68-81. doi:10.1515/auto-2022-0106 apa: Kersting, L., Arian, B., Rozo Vasquez, J., Trächtler, A., Homberg, W., & Walther, F. (2023). Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Bauteilfertigung. At - Automatisierungstechnik, 71(1), 68–81. https://doi.org/10.1515/auto-2022-0106 bibtex: '@article{Kersting_Arian_Rozo Vasquez_Trächtler_Homberg_Walther_2023, title={Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Bauteilfertigung}, volume={71}, DOI={10.1515/auto-2022-0106}, number={1}, journal={at - Automatisierungstechnik}, publisher={Walter de Gruyter GmbH}, author={Kersting, Lukas and Arian, Bahman and Rozo Vasquez, Julian and Trächtler, Ansgar and Homberg, Werner and Walther, Frank}, year={2023}, pages={68–81} }' chicago: 'Kersting, Lukas, Bahman Arian, Julian Rozo Vasquez, Ansgar Trächtler, Werner Homberg, and Frank Walther. “Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Bauteilfertigung.” At - Automatisierungstechnik 71, no. 1 (2023): 68–81. https://doi.org/10.1515/auto-2022-0106.' ieee: 'L. Kersting, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg, and F. Walther, “Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Bauteilfertigung,” at - Automatisierungstechnik, vol. 71, no. 1, pp. 68–81, 2023, doi: 10.1515/auto-2022-0106.' mla: Kersting, Lukas, et al. “Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Bauteilfertigung.” At - Automatisierungstechnik, vol. 71, no. 1, Walter de Gruyter GmbH, 2023, pp. 68–81, doi:10.1515/auto-2022-0106. short: L. Kersting, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg, F. Walther, At - Automatisierungstechnik 71 (2023) 68–81. date_created: 2023-05-02T09:35:01Z date_updated: 2023-09-25T10:08:25Z department: - _id: '156' - _id: '241' - _id: '153' doi: 10.1515/auto-2022-0106 intvolume: ' 71' issue: '1' keyword: - Electrical and Electronic Engineering - Computer Science Applications - Control and Systems Engineering language: - iso: eng page: 68-81 publication: at - Automatisierungstechnik publication_identifier: issn: - 0178-2312 - 2196-677X publication_status: published publisher: Walter de Gruyter GmbH quality_controlled: '1' status: public title: Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Bauteilfertigung type: journal_article user_id: '552' volume: 71 year: '2023' ... --- _id: '44315' abstract: - lang: eng text: Abstract. Climate change, rare resources and industrial transformation processes lead to a rising demand of multi-complex lightweight forming parts, especially in aerospace and automotive sectors. In these industries, flow forming is often used to produce cylindrical forming parts by reducing the wall thickness of tubular semifinished parts, e.g. for the production of hydraulic cylinders or gear shafts. The complexity and functionality of flow forming workpieces could be significantly increased by locally graded microstructure and geometry structures. This enables customized complex hardness distributions at wear surfaces or magnetic QR codes for a unique, tamper-proof product identification. The production of those complex, 2D (axial and angular) graded forming parts currently depicts a great challenge for the process and requires new solutions and strategies. Hence, this paper proposes a novel control strategy that includes online measurements from an absolute encoder to determine the angular workpiece position. Workpieces of AISI 304L stainless steel with 2D-graded structures are successfully manufactured using this new strategy and analyzed regarding the possible accuracy and resolution of the gradation. At this point, a dependency of the gradations on the sensor and actuator dynamics, accuracy and geometry could be noted. It is further evaluated how the control strategy could be extended by an observer-based closed-loop property control approach to enhance the accuracy of the suggested strategy. author: - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: 'Kersting L, Arian B, Rozo Vasquez J, Trächtler A, Homberg W, Walther F. Control strategy for angular gradations by means of the flow forming process. In: Materials Research Proceedings. Materials Research Forum LLC; 2023. doi:10.21741/9781644902479-220' apa: Kersting, L., Arian, B., Rozo Vasquez, J., Trächtler, A., Homberg, W., & Walther, F. (2023). Control strategy for angular gradations by means of the flow forming process. Materials Research Proceedings. https://doi.org/10.21741/9781644902479-220 bibtex: '@inproceedings{Kersting_Arian_Rozo Vasquez_Trächtler_Homberg_Walther_2023, title={Control strategy for angular gradations by means of the flow forming process}, DOI={10.21741/9781644902479-220}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Kersting, Lukas and Arian, Bahman and Rozo Vasquez, Julian and Trächtler, Ansgar and Homberg, Werner and Walther, Frank}, year={2023} }' chicago: Kersting, Lukas, Bahman Arian, Julian Rozo Vasquez, Ansgar Trächtler, Werner Homberg, and Frank Walther. “Control Strategy for Angular Gradations by Means of the Flow Forming Process.” In Materials Research Proceedings. Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902479-220. ieee: 'L. Kersting, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg, and F. Walther, “Control strategy for angular gradations by means of the flow forming process,” 2023, doi: 10.21741/9781644902479-220.' mla: Kersting, Lukas, et al. “Control Strategy for Angular Gradations by Means of the Flow Forming Process.” Materials Research Proceedings, Materials Research Forum LLC, 2023, doi:10.21741/9781644902479-220. short: 'L. Kersting, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg, F. Walther, in: Materials Research Proceedings, Materials Research Forum LLC, 2023.' date_created: 2023-05-02T09:46:20Z date_updated: 2023-09-25T10:09:06Z department: - _id: '156' - _id: '241' - _id: '153' doi: 10.21741/9781644902479-220 language: - iso: eng publication: Materials Research Proceedings publication_identifier: issn: - 2474-395X publication_status: published publisher: Materials Research Forum LLC quality_controlled: '1' status: public title: Control strategy for angular gradations by means of the flow forming process type: conference user_id: '552' year: '2023' ... --- _id: '44318' author: - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Frank full_name: Walther, Frank last_name: Walther - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler citation: ama: Rozo Vasquez J, Arian B, Kersting L, Walther F, Homberg W, Trächtler A. Detection of phase transformation during plastic deformation of metastable austenitic steel AISI 304L by means of X-ray diffraction pattern analysis. Metals. Published online 2023. apa: Rozo Vasquez, J., Arian, B., Kersting, L., Walther, F., Homberg, W., & Trächtler, A. (2023). Detection of phase transformation during plastic deformation of metastable austenitic steel AISI 304L by means of X-ray diffraction pattern analysis. Metals. bibtex: '@article{Rozo Vasquez_Arian_Kersting_Walther_Homberg_Trächtler_2023, title={Detection of phase transformation during plastic deformation of metastable austenitic steel AISI 304L by means of X-ray diffraction pattern analysis}, journal={Metals}, author={Rozo Vasquez, Julian and Arian, Bahman and Kersting, Lukas and Walther, Frank and Homberg, Werner and Trächtler, Ansgar}, year={2023} }' chicago: Rozo Vasquez, Julian, Bahman Arian, Lukas Kersting, Frank Walther, Werner Homberg, and Ansgar Trächtler. “Detection of Phase Transformation during Plastic Deformation of Metastable Austenitic Steel AISI 304L by Means of X-Ray Diffraction Pattern Analysis.” Metals, 2023. ieee: J. Rozo Vasquez, B. Arian, L. Kersting, F. Walther, W. Homberg, and A. Trächtler, “Detection of phase transformation during plastic deformation of metastable austenitic steel AISI 304L by means of X-ray diffraction pattern analysis,” Metals, 2023. mla: Rozo Vasquez, Julian, et al. “Detection of Phase Transformation during Plastic Deformation of Metastable Austenitic Steel AISI 304L by Means of X-Ray Diffraction Pattern Analysis.” Metals, 2023. short: J. Rozo Vasquez, B. Arian, L. Kersting, F. Walther, W. Homberg, A. Trächtler, Metals (2023). date_created: 2023-05-02T10:07:29Z date_updated: 2023-09-25T10:10:05Z department: - _id: '156' - _id: '241' - _id: '153' language: - iso: eng publication: Metals quality_controlled: '1' status: public title: Detection of phase transformation during plastic deformation of metastable austenitic steel AISI 304L by means of X-ray diffraction pattern analysis type: journal_article user_id: '552' year: '2023' ... --- _id: '44316' author: - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Frank full_name: Walther, Frank last_name: Walther - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler citation: ama: 'Rozo Vasquez J, Arian B, Kersting L, Walther F, Homberg W, Trächtler A. Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L. In: ; 2023.' apa: Rozo Vasquez, J., Arian, B., Kersting, L., Walther, F., Homberg, W., & Trächtler, A. (2023). Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L. The 14th International Conference on Numerical Methods in Industrial Forming Processes (Numiform 2023), Krakau. bibtex: '@inproceedings{Rozo Vasquez_Arian_Kersting_Walther_Homberg_Trächtler_2023, title={Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L}, author={Rozo Vasquez, Julian and Arian, Bahman and Kersting, Lukas and Walther, Frank and Homberg, Werner and Trächtler, Ansgar}, year={2023} }' chicago: Rozo Vasquez, Julian, Bahman Arian, Lukas Kersting, Frank Walther, Werner Homberg, and Ansgar Trächtler. “Softsensor Model of Phase Transformation during Flow Forming of Metastable Austenitic Steel AISI 304L,” 2023. ieee: J. Rozo Vasquez, B. Arian, L. Kersting, F. Walther, W. Homberg, and A. Trächtler, “Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L,” presented at the The 14th International Conference on Numerical Methods in Industrial Forming Processes (Numiform 2023), Krakau, 2023. mla: Rozo Vasquez, Julian, et al. Softsensor Model of Phase Transformation during Flow Forming of Metastable Austenitic Steel AISI 304L. 2023. short: 'J. Rozo Vasquez, B. Arian, L. Kersting, F. Walther, W. Homberg, A. Trächtler, in: 2023.' conference: end_date: 2023-06-29 location: Krakau name: The 14th International Conference on Numerical Methods in Industrial Forming Processes (Numiform 2023) start_date: 2023-06-25 date_created: 2023-05-02T09:56:46Z date_updated: 2023-11-07T00:01:46Z department: - _id: '156' - _id: '241' - _id: '153' language: - iso: eng quality_controlled: '1' status: public title: Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L type: conference user_id: '14931' year: '2023' ... --- _id: '44314' abstract: - lang: eng text: Abstract. Workpiece property-control permits the application-oriented and time-efficient production of components. In reverse flow forming, for example, a control of the microstructure profile is not yet part of the state of the art, in contrast to the geometry control. This is, due to several reasons, particularly challenging when forming seamless tubes made of metastable austenitic stainless AISI 304L steel. Inducing mechanical and/or thermal energy can cause a phase transformation from austenite to martensite within this steel. The resulting α’-martensite has different mechanical and micromagnetic properties, which can be advantageous depending on the application. For purposes of local property control, the resulting α’-martensite content should be measured and controlled online during the forming process. This paper presents results from the usage of a custom developed cryo-system and different application strategies to use liquid nitrogen as a coolant for local enhancement of the forming-temperature depending α’-martensite content. author: - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: 'Arian B, Homberg W, Kersting L, Trächtler A, Rozo Vasquez J, Walther F. Cryogenic reverse flow forming of AISI 304L. In: Materials Research Proceedings. Materials Research Forum LLC; 2023. doi:10.21741/9781644902479-219' apa: Arian, B., Homberg, W., Kersting, L., Trächtler, A., Rozo Vasquez, J., & Walther, F. (2023). Cryogenic reverse flow forming of AISI 304L. Materials Research Proceedings. https://doi.org/10.21741/9781644902479-219 bibtex: '@inproceedings{Arian_Homberg_Kersting_Trächtler_Rozo Vasquez_Walther_2023, title={Cryogenic reverse flow forming of AISI 304L}, DOI={10.21741/9781644902479-219}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler, Ansgar and Rozo Vasquez, Julian and Walther, Frank}, year={2023} }' chicago: Arian, Bahman, Werner Homberg, Lukas Kersting, Ansgar Trächtler, Julian Rozo Vasquez, and Frank Walther. “Cryogenic Reverse Flow Forming of AISI 304L.” In Materials Research Proceedings. Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902479-219. ieee: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, and F. Walther, “Cryogenic reverse flow forming of AISI 304L,” 2023, doi: 10.21741/9781644902479-219.' mla: Arian, Bahman, et al. “Cryogenic Reverse Flow Forming of AISI 304L.” Materials Research Proceedings, Materials Research Forum LLC, 2023, doi:10.21741/9781644902479-219. short: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, F. Walther, in: Materials Research Proceedings, Materials Research Forum LLC, 2023.' date_created: 2023-05-02T09:43:25Z date_updated: 2023-12-15T09:32:05Z department: - _id: '156' - _id: '241' - _id: '153' doi: 10.21741/9781644902479-219 language: - iso: eng main_file_link: - open_access: '1' url: https://www.mrforum.com/product/9781644902479-219/ oa: '1' publication: Materials Research Proceedings publication_identifier: issn: - 2474-395X publication_status: published publisher: Materials Research Forum LLC quality_controlled: '1' status: public title: Cryogenic reverse flow forming of AISI 304L type: conference user_id: '36287' year: '2023' ... --- _id: '49705' author: - first_name: Sophie Charlotte full_name: Stebner, Sophie Charlotte last_name: Stebner - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Juri full_name: Martschin, Juri last_name: Martschin - first_name: Stefan full_name: Dietrich, Stefan last_name: Dietrich - first_name: Martin full_name: Feistle, Martin last_name: Feistle - first_name: Sebastian full_name: Hütter, Sebastian last_name: Hütter - first_name: Rémi full_name: Lafarge, Rémi last_name: Lafarge - first_name: Robert full_name: Laue, Robert last_name: Laue - first_name: Xinyang full_name: Li, Xinyang last_name: Li - first_name: Christopher full_name: Schulte, Christopher last_name: Schulte - first_name: Daniel full_name: Spies, Daniel last_name: Spies - first_name: Ferdinand full_name: Thein, Ferdinand last_name: Thein - first_name: Frank full_name: Wendler, Frank last_name: Wendler - first_name: Malte full_name: Wrobel, Malte last_name: Wrobel - first_name: Julian Rozo full_name: Vasquez, Julian Rozo last_name: Vasquez - first_name: Michael full_name: Dölz, Michael last_name: Dölz - first_name: Sebastian full_name: Münstermann, Sebastian last_name: Münstermann citation: ama: 'Stebner SC, Arian B, Martschin J, et al. Monitoring the evolution of dimensional accuracy and product properties in property-controlled forming processes. Electrical Engineering: Systems and Control. Published online 2023. doi:10.48550/ARXIV.2305.19601' apa: 'Stebner, S. C., Arian, B., Martschin, J., Dietrich, S., Feistle, M., Hütter, S., Lafarge, R., Laue, R., Li, X., Schulte, C., Spies, D., Thein, F., Wendler, F., Wrobel, M., Vasquez, J. R., Dölz, M., & Münstermann, S. (2023). Monitoring the evolution of dimensional accuracy and product properties in property-controlled forming processes. Electrical Engineering: Systems and Control. https://doi.org/10.48550/ARXIV.2305.19601' bibtex: '@article{Stebner_Arian_Martschin_Dietrich_Feistle_Hütter_Lafarge_Laue_Li_Schulte_et al._2023, title={Monitoring the evolution of dimensional accuracy and product properties in property-controlled forming processes}, DOI={10.48550/ARXIV.2305.19601}, journal={Electrical Engineering: Systems and Control}, author={Stebner, Sophie Charlotte and Arian, Bahman and Martschin, Juri and Dietrich, Stefan and Feistle, Martin and Hütter, Sebastian and Lafarge, Rémi and Laue, Robert and Li, Xinyang and Schulte, Christopher and et al.}, year={2023} }' chicago: 'Stebner, Sophie Charlotte, Bahman Arian, Juri Martschin, Stefan Dietrich, Martin Feistle, Sebastian Hütter, Rémi Lafarge, et al. “Monitoring the Evolution of Dimensional Accuracy and Product Properties in Property-Controlled Forming Processes.” Electrical Engineering: Systems and Control, 2023. https://doi.org/10.48550/ARXIV.2305.19601.' ieee: 'S. C. Stebner et al., “Monitoring the evolution of dimensional accuracy and product properties in property-controlled forming processes,” Electrical Engineering: Systems and Control, 2023, doi: 10.48550/ARXIV.2305.19601.' mla: 'Stebner, Sophie Charlotte, et al. “Monitoring the Evolution of Dimensional Accuracy and Product Properties in Property-Controlled Forming Processes.” Electrical Engineering: Systems and Control, 2023, doi:10.48550/ARXIV.2305.19601.' short: 'S.C. Stebner, B. Arian, J. Martschin, S. Dietrich, M. Feistle, S. Hütter, R. Lafarge, R. Laue, X. Li, C. Schulte, D. Spies, F. Thein, F. Wendler, M. Wrobel, J.R. Vasquez, M. Dölz, S. Münstermann, Electrical Engineering: Systems and Control (2023).' date_created: 2023-12-15T12:33:21Z date_updated: 2023-12-15T12:39:55Z doi: 10.48550/ARXIV.2305.19601 language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2305.19601 oa: '1' publication: 'Electrical Engineering: Systems and Control' quality_controlled: '1' status: public title: Monitoring the evolution of dimensional accuracy and product properties in property-controlled forming processes type: journal_article user_id: '36287' year: '2023' ... --- _id: '48075' abstract: - lang: eng text: AbstractThe constantly increasing challenges of production technology for the economic and resource-saving production of metallic workpieces require, among other things, the optimisation of existing processes. Forming technology, which is confronted with new challenges regarding the quality of the workpieces, must also organise the individual processes more efficiently and at the same time more reliably in order to be able to guarantee good workpiece quality and at the same time to be able to produce economically. One way to meet these challenges is to carry out the forming processes in closed-loop control systems using softsensors. Despite the many potential applications of softsensors in the field of forming technology, there is still no definition of the term softsensor. This publication therefore proposes a definition of the softsensor based on the definition of a sensor and the distinction from the observer, which on the one hand is intended to stimulate scientific discourse and on the other hand is also intended to form the basis for further scientific work. Based on this definition, a wide variety of highly topical application examples of various softsensors in the field of forming technology are given. article_type: original author: - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Viktor full_name: Arne, Viktor last_name: Arne - first_name: Thomas full_name: Borgert, Thomas id: '83141' last_name: Borgert - first_name: Alexander full_name: Brosius, Alexander last_name: Brosius - first_name: Peter full_name: Groche, Peter last_name: Groche - first_name: Christoph full_name: Hartmann, Christoph last_name: Hartmann - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Robert full_name: Laue, Robert last_name: Laue - first_name: Juri full_name: Martschin, Juri last_name: Martschin - first_name: Thomas full_name: Meurer, Thomas last_name: Meurer - first_name: Daniel full_name: Spies, Daniel last_name: Spies - first_name: A. Erman full_name: Tekkaya, A. Erman last_name: Tekkaya - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Wolfram full_name: Volk, Wolfram last_name: Volk - first_name: Frank full_name: Wendler, Frank last_name: Wendler - first_name: Malte full_name: Wrobel, Malte last_name: Wrobel citation: ama: 'Homberg W, Arian B, Arne V, et al. Softsensors: key component of property control in forming technology. Production Engineering. Published online 2023. doi:10.1007/s11740-023-01227-1' apa: 'Homberg, W., Arian, B., Arne, V., Borgert, T., Brosius, A., Groche, P., Hartmann, C., Kersting, L., Laue, R., Martschin, J., Meurer, T., Spies, D., Tekkaya, A. E., Trächtler, A., Volk, W., Wendler, F., & Wrobel, M. (2023). Softsensors: key component of property control in forming technology. Production Engineering. https://doi.org/10.1007/s11740-023-01227-1' bibtex: '@article{Homberg_Arian_Arne_Borgert_Brosius_Groche_Hartmann_Kersting_Laue_Martschin_et al._2023, title={Softsensors: key component of property control in forming technology}, DOI={10.1007/s11740-023-01227-1}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Homberg, Werner and Arian, Bahman and Arne, Viktor and Borgert, Thomas and Brosius, Alexander and Groche, Peter and Hartmann, Christoph and Kersting, Lukas and Laue, Robert and Martschin, Juri and et al.}, year={2023} }' chicago: 'Homberg, Werner, Bahman Arian, Viktor Arne, Thomas Borgert, Alexander Brosius, Peter Groche, Christoph Hartmann, et al. “Softsensors: Key Component of Property Control in Forming Technology.” Production Engineering, 2023. https://doi.org/10.1007/s11740-023-01227-1.' ieee: 'W. Homberg et al., “Softsensors: key component of property control in forming technology,” Production Engineering, 2023, doi: 10.1007/s11740-023-01227-1.' mla: 'Homberg, Werner, et al. “Softsensors: Key Component of Property Control in Forming Technology.” Production Engineering, Springer Science and Business Media LLC, 2023, doi:10.1007/s11740-023-01227-1.' short: W. Homberg, B. Arian, V. Arne, T. Borgert, A. Brosius, P. Groche, C. Hartmann, L. Kersting, R. Laue, J. Martschin, T. Meurer, D. Spies, A.E. Tekkaya, A. Trächtler, W. Volk, F. Wendler, M. Wrobel, Production Engineering (2023). date_created: 2023-10-16T07:17:17Z date_updated: 2023-12-22T10:56:58Z department: - _id: '156' - _id: '153' - _id: '241' doi: 10.1007/s11740-023-01227-1 keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng main_file_link: - open_access: '1' url: https://link.springer.com/article/10.1007/s11740-023-01227-1 oa: '1' publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: 'Softsensors: key component of property control in forming technology' type: journal_article user_id: '14931' year: '2023' ... --- _id: '34000' abstract: - lang: eng text: "Abstract\r\n This paper presents the characterization of the microstructure evolution during flow forming of austenitic stainless steel AISI 304L. Due to plastic deformation of metastable austenitic steel, phase transformation from γ-austenite into α’-martensite occurs. This is initiated by the formation of shear bands as product of the external stresses. By means of coupled microscopic and micromagnetic investigations, a characterization of the microstructure was carried out. In particular, this study shows the distribution of the strain-induced α’-martensite and its influence on material properties like hardness at different depths. The microstructural analyses by means of electron backscattered diffraction (EBSD) technique, evidence a higher amount of α’-martensite (ca. 23 %) close to the outer specimen surface, where the plastic deformation and the direct contact with the forming tool take place. In the middle area (ca. 1.5 mm depth from the outer surface), the portion of transformed α’-martensite drops to 7 % and in the inner surface to 2 %. These results are well correlated with microhardness and micromagnetic measurements at different depths. EBSD and atomic force microscopy (AFM) were used to make a detailed characterization of the topography and degree of deformation of the shear bands. Likewise, the mechanisms of nucleation of α’-martensite were discussed. This research contributes to the development of micromagnetic sensors to monitor the evolution of properties during flow forming. This makes them more suitable for closed-loop property control, which offers possibilities for an application-oriented and more efficient production." author: - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Hanigah full_name: Kanagarajah, Hanigah last_name: Kanagarajah - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: Rozo Vasquez J, Kanagarajah H, Arian B, et al. Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming. Practical Metallography. 2022;59(11):660-675. doi:10.1515/pm-2022-0064 apa: Rozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler, A., & Walther, F. (2022). Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming. Practical Metallography, 59(11), 660–675. https://doi.org/10.1515/pm-2022-0064 bibtex: '@article{Rozo Vasquez_Kanagarajah_Arian_Kersting_Homberg_Trächtler_Walther_2022, title={Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming}, volume={59}, DOI={10.1515/pm-2022-0064}, number={11}, journal={Practical Metallography}, publisher={Walter de Gruyter GmbH}, author={Rozo Vasquez, Julian and Kanagarajah, Hanigah and Arian, Bahman and Kersting, Lukas and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2022}, pages={660–675} }' chicago: 'Rozo Vasquez, Julian, Hanigah Kanagarajah, Bahman Arian, Lukas Kersting, Werner Homberg, Ansgar Trächtler, and Frank Walther. “Coupled Microscopic and Micromagnetic Depth-Specific Analysis of Plastic Deformation and Phase Transformation of Metastable Austenitic Steel AISI 304L by Flow Forming.” Practical Metallography 59, no. 11 (2022): 660–75. https://doi.org/10.1515/pm-2022-0064.' ieee: 'J. Rozo Vasquez et al., “Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming,” Practical Metallography, vol. 59, no. 11, pp. 660–675, 2022, doi: 10.1515/pm-2022-0064.' mla: Rozo Vasquez, Julian, et al. “Coupled Microscopic and Micromagnetic Depth-Specific Analysis of Plastic Deformation and Phase Transformation of Metastable Austenitic Steel AISI 304L by Flow Forming.” Practical Metallography, vol. 59, no. 11, Walter de Gruyter GmbH, 2022, pp. 660–75, doi:10.1515/pm-2022-0064. short: J. Rozo Vasquez, H. Kanagarajah, B. Arian, L. Kersting, W. Homberg, A. Trächtler, F. Walther, Practical Metallography 59 (2022) 660–675. date_created: 2022-11-04T08:29:21Z date_updated: 2023-05-02T08:19:27Z department: - _id: '156' - _id: '153' - _id: '241' doi: 10.1515/pm-2022-0064 intvolume: ' 59' issue: '11' keyword: - Metals and Alloys - Mechanics of Materials - Condensed Matter Physics - Electronic - Optical and Magnetic Materials language: - iso: eng page: 660-675 publication: Practical Metallography publication_identifier: issn: - 2195-8599 - 0032-678X publication_status: published publisher: Walter de Gruyter GmbH quality_controlled: '1' status: public title: Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming type: journal_article user_id: '36287' volume: 59 year: '2022' ... --- _id: '33999' abstract: - lang: eng text: The production of complex multi-functional, high-strength parts is becoming increasingly important in the industry. Especially with small batch size, the incremental flow forming processes can be advantageous. The production of parts with complex geometry and locally graded material properties currently depicts a great challenge in the flow forming process. At this point, the usage of closed-loop control for the shape and properties could be a feasible new solution. The overall aim in this project is to establish an intelligent closed-loop control system for the wall thickness as well as the α’-martensite content of AISI 304L-workpieces in a flow forming process. To reach this goal, a novel sensor concept for online measurements of the wall thickness reduction and the martensite content during forming process is proposed. It includes the setup of a modified flow forming machine and the integration of the sensor system in the machine control. Additionally, a simulation model for the flow forming process is presented which describes the forming process with regard to the plastic workpiece deformation, the induced α’-martensite fraction, and the sensor behavior. This model was used for designing a closed-loop process control of the wall thickness reduction that was subsequently realized at the real plant including online measured feedback from the sensor system. author: - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Julian Rozo full_name: Vasquez, Julian Rozo last_name: Vasquez - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: Kersting L, Arian B, Vasquez JR, Trächtler A, Homberg W, Walther F. Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes. Key Engineering Materials. 2022;926:862-874. doi:10.4028/p-yp2hj3 apa: Kersting, L., Arian, B., Vasquez, J. R., Trächtler, A., Homberg, W., & Walther, F. (2022). Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes. Key Engineering Materials, 926, 862–874. https://doi.org/10.4028/p-yp2hj3 bibtex: '@article{Kersting_Arian_Vasquez_Trächtler_Homberg_Walther_2022, title={Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes}, volume={926}, DOI={10.4028/p-yp2hj3}, journal={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.}, author={Kersting, Lukas and Arian, Bahman and Vasquez, Julian Rozo and Trächtler, Ansgar and Homberg, Werner and Walther, Frank}, year={2022}, pages={862–874} }' chicago: 'Kersting, Lukas, Bahman Arian, Julian Rozo Vasquez, Ansgar Trächtler, Werner Homberg, and Frank Walther. “Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes.” Key Engineering Materials 926 (2022): 862–74. https://doi.org/10.4028/p-yp2hj3.' ieee: 'L. Kersting, B. Arian, J. R. Vasquez, A. Trächtler, W. Homberg, and F. Walther, “Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes,” Key Engineering Materials, vol. 926, pp. 862–874, 2022, doi: 10.4028/p-yp2hj3.' mla: Kersting, Lukas, et al. “Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes.” Key Engineering Materials, vol. 926, Trans Tech Publications, Ltd., 2022, pp. 862–74, doi:10.4028/p-yp2hj3. short: L. Kersting, B. Arian, J.R. Vasquez, A. Trächtler, W. Homberg, F. Walther, Key Engineering Materials 926 (2022) 862–874. date_created: 2022-11-04T08:27:33Z date_updated: 2023-05-02T08:19:13Z department: - _id: '156' - _id: '153' - _id: '241' doi: 10.4028/p-yp2hj3 intvolume: ' 926' keyword: - Mechanical Engineering - Mechanics of Materials - General Materials Science language: - iso: eng page: 862-874 publication: Key Engineering Materials publication_identifier: issn: - 1662-9795 publication_status: published publisher: Trans Tech Publications, Ltd. quality_controlled: '1' status: public title: Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes type: journal_article user_id: '36287' volume: 926 year: '2022' ... --- _id: '36563' author: - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Frank full_name: Walther, Frank last_name: Walther - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Ansgar full_name: Trächtler, Ansgar last_name: Trächtler citation: ama: 'Rozo Vasquez J, Walther F, Arian B, Homberg W, Kersting L, Trächtler A. Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel. In: Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing. ; 2022.' apa: Rozo Vasquez, J., Walther, F., Arian, B., Homberg, W., Kersting, L., & Trächtler, A. (2022). Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel. Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing. ICBM 14, 14th International Conference on Barkhausen Noise and Micromagnetic Testing, Stockholm. bibtex: '@inproceedings{Rozo Vasquez_Walther_Arian_Homberg_Kersting_Trächtler_2022, title={Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel.}, booktitle={Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing}, author={Rozo Vasquez, Julian and Walther, Frank and Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler, Ansgar}, year={2022} }' chicago: Rozo Vasquez, Julian, Frank Walther, Bahman Arian, Werner Homberg, Lukas Kersting, and Ansgar Trächtler. “Soft Sensor Concept for Micromagnetic Depth-Specific Analysis of Phase Transformation during Flow Forming of AISI 304L Steel.” In Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing, 2022. ieee: J. Rozo Vasquez, F. Walther, B. Arian, W. Homberg, L. Kersting, and A. Trächtler, “Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel.,” presented at the ICBM 14, 14th International Conference on Barkhausen Noise and Micromagnetic Testing, Stockholm, 2022. mla: Rozo Vasquez, Julian, et al. “Soft Sensor Concept for Micromagnetic Depth-Specific Analysis of Phase Transformation during Flow Forming of AISI 304L Steel.” Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing, 2022. short: 'J. Rozo Vasquez, F. Walther, B. Arian, W. Homberg, L. Kersting, A. Trächtler, in: Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing, 2022.' conference: end_date: 2022-09-30 location: Stockholm name: ICBM 14, 14th International Conference on Barkhausen Noise and Micromagnetic Testing start_date: 2022-09-27 date_created: 2023-01-13T10:10:03Z date_updated: 2023-05-02T08:20:04Z department: - _id: '156' - _id: '241' language: - iso: eng publication: Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing quality_controlled: '1' status: public title: Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel. type: conference user_id: '36287' year: '2022' ... --- _id: '36412' author: - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Ansgar full_name: Trächtler, Ansgar last_name: Trächtler - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: Kersting L, Trächtler A, Arian B, Homberg W, Rozo Vasquez J, Walther F. Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Herstellung Gradierter Bauteile. Diedrich; 2022. apa: Kersting, L., Trächtler, A., Arian, B., Homberg, W., Rozo Vasquez, J., & Walther, F. (2022). Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Herstellung gradierter Bauteile. Diedrich. bibtex: '@book{Kersting_Trächtler_Arian_Homberg_Rozo Vasquez_Walther_2022, place={Magdeburg}, title={Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Herstellung gradierter Bauteile.}, publisher={Diedrich}, author={Kersting, Lukas and Trächtler, Ansgar and Arian, Bahman and Homberg, Werner and Rozo Vasquez, Julian and Walther, Frank}, year={2022} }' chicago: 'Kersting, Lukas, Ansgar Trächtler, Bahman Arian, Werner Homberg, Julian Rozo Vasquez, and Frank Walther. Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Herstellung Gradierter Bauteile. Magdeburg: Diedrich, 2022.' ieee: 'L. Kersting, A. Trächtler, B. Arian, W. Homberg, J. Rozo Vasquez, and F. Walther, Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Herstellung gradierter Bauteile. Magdeburg: Diedrich, 2022.' mla: Kersting, Lukas, et al. Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Herstellung Gradierter Bauteile. Diedrich, 2022. short: L. Kersting, A. Trächtler, B. Arian, W. Homberg, J. Rozo Vasquez, F. Walther, Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Herstellung Gradierter Bauteile., Diedrich, Magdeburg, 2022. date_created: 2023-01-12T11:44:49Z date_updated: 2023-05-02T08:20:36Z department: - _id: '241' - _id: '156' language: - iso: eng place: Magdeburg publication_identifier: isbn: - '978-3-948749-23-1 ' publisher: Diedrich quality_controlled: '1' status: public title: Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Herstellung gradierter Bauteile. type: book user_id: '36287' year: '2022' ... --- _id: '34001' author: - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez citation: ama: 'Arian B, Homberg W, Kersting L, Trächtler A, Rozo Vasquez J. Produktkennzeichnung durch lokal definierte Einstellung von ferromagnetischen Eigenschaften beim Drückwalzen von metastabilen Stahlwerkstoffen. In: 36. Aachener Stahlkolloquium – Umformtechnik “Ideen Form Geben“. ; 2022:333-347.' apa: Arian, B., Homberg, W., Kersting, L., Trächtler, A., & Rozo Vasquez, J. (2022). Produktkennzeichnung durch lokal definierte Einstellung von ferromagnetischen Eigenschaften beim Drückwalzen von metastabilen Stahlwerkstoffen. 36. Aachener Stahlkolloquium – Umformtechnik “Ideen Form Geben“, 333–347. bibtex: '@inproceedings{Arian_Homberg_Kersting_Trächtler_Rozo Vasquez_2022, place={Aachen}, title={Produktkennzeichnung durch lokal definierte Einstellung von ferromagnetischen Eigenschaften beim Drückwalzen von metastabilen Stahlwerkstoffen}, booktitle={36. Aachener Stahlkolloquium – Umformtechnik “Ideen Form geben“}, author={Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler, Ansgar and Rozo Vasquez, Julian}, year={2022}, pages={333–347} }' chicago: Arian, Bahman, Werner Homberg, Lukas Kersting, Ansgar Trächtler, and Julian Rozo Vasquez. “Produktkennzeichnung Durch Lokal Definierte Einstellung von Ferromagnetischen Eigenschaften Beim Drückwalzen von Metastabilen Stahlwerkstoffen.” In 36. Aachener Stahlkolloquium – Umformtechnik “Ideen Form Geben“, 333–47. Aachen, 2022. ieee: B. Arian, W. Homberg, L. Kersting, A. Trächtler, and J. Rozo Vasquez, “Produktkennzeichnung durch lokal definierte Einstellung von ferromagnetischen Eigenschaften beim Drückwalzen von metastabilen Stahlwerkstoffen,” in 36. Aachener Stahlkolloquium – Umformtechnik “Ideen Form geben“, 2022, pp. 333–347. mla: Arian, Bahman, et al. “Produktkennzeichnung Durch Lokal Definierte Einstellung von Ferromagnetischen Eigenschaften Beim Drückwalzen von Metastabilen Stahlwerkstoffen.” 36. Aachener Stahlkolloquium – Umformtechnik “Ideen Form Geben“, 2022, pp. 333–47. short: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, in: 36. Aachener Stahlkolloquium – Umformtechnik “Ideen Form Geben“, Aachen, 2022, pp. 333–347.' date_created: 2022-11-04T08:35:03Z date_updated: 2023-12-15T09:38:08Z department: - _id: '156' - _id: '153' - _id: '241' language: - iso: eng main_file_link: - open_access: '1' oa: '1' page: 333-347 place: Aachen publication: 36. Aachener Stahlkolloquium – Umformtechnik “Ideen Form geben“ publication_identifier: isbn: - 978-3-95886-460-3 quality_controlled: '1' status: public title: Produktkennzeichnung durch lokal definierte Einstellung von ferromagnetischen Eigenschaften beim Drückwalzen von metastabilen Stahlwerkstoffen type: conference user_id: '36287' year: '2022' ... --- _id: '34003' author: - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Annika full_name: Oesterwinter, Annika id: '44917' last_name: Oesterwinter - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Frank full_name: Walther, Frank last_name: Walther - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler citation: ama: 'Arian B, Oesterwinter A, Homberg W, et al. A flow forming process model to predict workpiece properties in AISI 304L. In: 19th Int. Conference on Metal Forming 2022. ; 2022.' apa: Arian, B., Oesterwinter, A., Homberg, W., Rozo Vasquez, J., Walther, F., Kersting, L., & Trächtler, A. (2022). A flow forming process model to predict workpiece properties in AISI 304L. 19th Int. Conference on Metal Forming 2022. bibtex: '@inproceedings{Arian_Oesterwinter_Homberg_Rozo Vasquez_Walther_Kersting_Trächtler_2022, title={A flow forming process model to predict workpiece properties in AISI 304L}, booktitle={19th Int. Conference on Metal Forming 2022}, author={Arian, Bahman and Oesterwinter, Annika and Homberg, Werner and Rozo Vasquez, Julian and Walther, Frank and Kersting, Lukas and Trächtler, Ansgar}, year={2022} }' chicago: Arian, Bahman, Annika Oesterwinter, Werner Homberg, Julian Rozo Vasquez, Frank Walther, Lukas Kersting, and Ansgar Trächtler. “A Flow Forming Process Model to Predict Workpiece Properties in AISI 304L.” In 19th Int. Conference on Metal Forming 2022, 2022. ieee: B. Arian et al., “A flow forming process model to predict workpiece properties in AISI 304L,” 2022. mla: Arian, Bahman, et al. “A Flow Forming Process Model to Predict Workpiece Properties in AISI 304L.” 19th Int. Conference on Metal Forming 2022, 2022. short: 'B. Arian, A. Oesterwinter, W. Homberg, J. Rozo Vasquez, F. Walther, L. Kersting, A. Trächtler, in: 19th Int. Conference on Metal Forming 2022, 2022.' date_created: 2022-11-04T09:02:27Z date_updated: 2023-12-15T09:38:57Z department: - _id: '153' - _id: '241' - _id: '156' language: - iso: eng main_file_link: - open_access: '1' oa: '1' publication: 19th Int. Conference on Metal Forming 2022 quality_controlled: '1' status: public title: A flow forming process model to predict workpiece properties in AISI 304L type: conference user_id: '36287' year: '2022' ... --- _id: '30297' author: - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Markus full_name: Riepold, Markus last_name: Riepold - first_name: Frank full_name: Walther, Frank last_name: Walther - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler citation: ama: 'Rozo Vasquez J, Arian B, Riepold M, Walther F, Homberg W, Trächtler A. Magnetic Barkhausen noise analysis for microstructural effects separation during flow forming of metastable austenite 304L. In: Proceedings of the 11th International Work­shop NDT in Progress. ; 2021.' apa: Rozo Vasquez, J., Arian, B., Riepold, M., Walther, F., Homberg, W., & Trächtler, A. (2021). Magnetic Barkhausen noise analysis for microstructural effects separation during flow forming of metastable austenite 304L. Proceedings of the 11th International Work­shop NDT in Progress. ENDT&CM 2021 - 11th International Work­shop NDT in Progress, Prague. bibtex: '@inproceedings{Rozo Vasquez_Arian_Riepold_Walther_Homberg_Trächtler_2021, title={Magnetic Barkhausen noise analysis for microstructural effects separation during flow forming of metastable austenite 304L.}, booktitle={Proceedings of the 11th International Work­shop NDT in Progress}, author={Rozo Vasquez, Julian and Arian, Bahman and Riepold, Markus and Walther, Frank and Homberg, Werner and Trächtler, Ansgar}, year={2021} }' chicago: Rozo Vasquez, Julian, Bahman Arian, Markus Riepold, Frank Walther, Werner Homberg, and Ansgar Trächtler. “Magnetic Barkhausen Noise Analysis for Microstructural Effects Separation during Flow Forming of Metastable Austenite 304L.” In Proceedings of the 11th International Work­shop NDT in Progress, 2021. ieee: J. Rozo Vasquez, B. Arian, M. Riepold, F. Walther, W. Homberg, and A. Trächtler, “Magnetic Barkhausen noise analysis for microstructural effects separation during flow forming of metastable austenite 304L.,” presented at the ENDT&CM 2021 - 11th International Work­shop NDT in Progress, Prague, 2021. mla: Rozo Vasquez, Julian, et al. “Magnetic Barkhausen Noise Analysis for Microstructural Effects Separation during Flow Forming of Metastable Austenite 304L.” Proceedings of the 11th International Work­shop NDT in Progress, 2021. short: 'J. Rozo Vasquez, B. Arian, M. Riepold, F. Walther, W. Homberg, A. Trächtler, in: Proceedings of the 11th International Work­shop NDT in Progress, 2021.' conference: end_date: 2021.10.07 location: Prague name: ENDT&CM 2021 - 11th International Work­shop NDT in Progress start_date: 2021.10.04 date_created: 2022-03-15T12:07:17Z date_updated: 2023-05-02T08:22:02Z department: - _id: '156' - _id: '153' - _id: '241' language: - iso: eng publication: Proceedings of the 11th International Work­shop NDT in Progress quality_controlled: '1' status: public title: Magnetic Barkhausen noise analysis for microstructural effects separation during flow forming of metastable austenite 304L. type: conference user_id: '36287' year: '2021' ... --- _id: '23465' abstract: - lang: eng text: One of the main objectives of production engineering is to reproducibly manufacture (complex) defect-free parts. To achieve this, it is necessary to employ an appropriate process or tool design. While this will generally prove successful, it cannot, however, offset stochastic defects with local variations in material properties. Closed-loop process control represents a promising approach for a solution in this context. The state of the art involves using this approach to control geometric parameters such as a length. So far, no research or applications have been conducted with closed-loop control for microstructure and product properties. In the project on which this paper is based, the local martensite content of parts is to be adjusted in a highly precise and reproducible manner. The forming process employed is a special, property-controlled flow-forming process. A model-based controller is thus to generate corresponding correction values for the tool-path geometry and tool-path velocity on the basis of online martensite content measurements. For the controller model, it is planned to use a special process or microstructure (correlation) model. The planned paper not only describes the experimental setup but also presents results of initial experimental investigations for subsequent use in the closed-loop control of α’-martensite content during flow-forming. author: - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Markus full_name: Riepold, Markus last_name: Riepold - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: 'Arian B, Homberg W, Riepold M, Trächtler A, Rozo Vasquez J, Walther F. Forming of metastable austenitic stainless steel tubes with axially graded martensite content by flow-forming. In: ULiège Library; 2021.' apa: Arian, B., Homberg, W., Riepold, M., Trächtler, A., Rozo Vasquez, J., & Walther, F. (2021). Forming of metastable austenitic stainless steel tubes with axially graded martensite content by flow-forming. 24th International Conference on Material Forming - ESAFORM 2021, Liège, Belgium. bibtex: '@inproceedings{Arian_Homberg_Riepold_Trächtler_Rozo Vasquez_Walther_2021, place={Liège}, title={Forming of metastable austenitic stainless steel tubes with axially graded martensite content by flow-forming}, publisher={ULiège Library}, author={Arian, Bahman and Homberg, Werner and Riepold, Markus and Trächtler, Ansgar and Rozo Vasquez, Julian and Walther, Frank}, year={2021} }' chicago: 'Arian, Bahman, Werner Homberg, Markus Riepold, Ansgar Trächtler, Julian Rozo Vasquez, and Frank Walther. “Forming of Metastable Austenitic Stainless Steel Tubes with Axially Graded Martensite Content by Flow-Forming.” Liège: ULiège Library, 2021.' ieee: B. Arian, W. Homberg, M. Riepold, A. Trächtler, J. Rozo Vasquez, and F. Walther, “Forming of metastable austenitic stainless steel tubes with axially graded martensite content by flow-forming,” presented at the 24th International Conference on Material Forming - ESAFORM 2021, Liège, Belgium, 2021. mla: Arian, Bahman, et al. Forming of Metastable Austenitic Stainless Steel Tubes with Axially Graded Martensite Content by Flow-Forming. ULiège Library, 2021. short: 'B. Arian, W. Homberg, M. Riepold, A. Trächtler, J. Rozo Vasquez, F. Walther, in: ULiège Library, Liège, 2021.' conference: end_date: 2021-04-16 location: Liège, Belgium name: 24th International Conference on Material Forming - ESAFORM 2021 start_date: 2021-04-14 date_created: 2021-08-23T13:00:35Z date_updated: 2023-05-02T08:27:48Z department: - _id: '156' - _id: '153' - _id: '241' keyword: - Flow-forming - Spinning - Process Strategy - Martensite Content - Property Control - Micromagnetic Measurement - Metastable Austenitic Stainless Steel language: - iso: eng main_file_link: - open_access: '1' url: https://popups.uliege.be/esaform21/index.php?id=2759 oa: '1' place: Liège publication_identifier: eisbn: - 978-2-87019-303-7 isbn: - 978-2-87019-302-0 publication_status: published publisher: ULiège Library quality_controlled: '1' status: public title: Forming of metastable austenitic stainless steel tubes with axially graded martensite content by flow-forming type: conference user_id: '36287' year: '2021' ... --- _id: '30296' author: - first_name: Eugen full_name: Wiens, Eugen id: '7888' last_name: Wiens - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Kerstin full_name: Möhring, Kerstin last_name: Möhring - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: 'Wiens E, Homberg W, Arian B, Möhring K, Walther F. Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming. In: Forming the Future. Springer International Publishing; 2021. doi:10.1007/978-3-030-75381-8_160' apa: Wiens, E., Homberg, W., Arian, B., Möhring, K., & Walther, F. (2021). Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming. In Forming the Future. The 13th International Conference on the Technology of Plasticity (ICTP 2021), Virtual Event. Springer International Publishing. https://doi.org/10.1007/978-3-030-75381-8_160 bibtex: '@inbook{Wiens_Homberg_Arian_Möhring_Walther_2021, place={Cham}, title={Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming}, DOI={10.1007/978-3-030-75381-8_160}, booktitle={Forming the Future}, publisher={Springer International Publishing}, author={Wiens, Eugen and Homberg, Werner and Arian, Bahman and Möhring, Kerstin and Walther, Frank}, year={2021} }' chicago: 'Wiens, Eugen, Werner Homberg, Bahman Arian, Kerstin Möhring, and Frank Walther. “Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming.” In Forming the Future. Cham: Springer International Publishing, 2021. https://doi.org/10.1007/978-3-030-75381-8_160.' ieee: 'E. Wiens, W. Homberg, B. Arian, K. Möhring, and F. Walther, “Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming,” in Forming the Future, Cham: Springer International Publishing, 2021.' mla: Wiens, Eugen, et al. “Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming.” Forming the Future, Springer International Publishing, 2021, doi:10.1007/978-3-030-75381-8_160. short: 'E. Wiens, W. Homberg, B. Arian, K. Möhring, F. Walther, in: Forming the Future, Springer International Publishing, Cham, 2021.' conference: end_date: 2021.07.30 location: Virtual Event name: The 13th International Conference on the Technology of Plasticity (ICTP 2021) start_date: 2021.07.25 date_created: 2022-03-15T10:42:31Z date_updated: 2023-05-05T11:06:07Z department: - _id: '156' doi: 10.1007/978-3-030-75381-8_160 language: - iso: eng place: Cham publication: Forming the Future publication_identifier: isbn: - '9783030753801' - '9783030753818' issn: - 2367-1181 - 2367-1696 publication_status: published publisher: Springer International Publishing quality_controlled: '1' status: public title: Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming type: book_chapter user_id: '7888' year: '2021' ... --- _id: '23469' abstract: - lang: eng text: The implementation of control systems in metal forming processes improves product quality and productivity. By controlling workpiece properties during the process, beneficial effects caused by forming can be exploited and integrated in the product design. The overall goal of this investigation is to produce tailored tubular parts with a defined locally graded microstructure by means of reverse flow forming. For this purpose, the proposed system aims to control both the desired geometry of the workpiece and additionally the formation of strain-induced α′-martensite content in the metastable austenitic stainless steel AISI 304 L. The paper introduces an overall control scheme, a geometry model for describing the process and changes in the dimensions of the workpiece, as well as a material model for the process-induced formation of martensite, providing equations based on empirical data. Moreover, measurement systems providing a closed feedback loop are presented, including a novel softsensor for in-situ measurements of the martensite content. article_number: '100057' author: - first_name: Markus full_name: Riepold, Markus last_name: Riepold - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Julian Rozo full_name: Vasquez, Julian Rozo last_name: Vasquez - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Frank full_name: Walther, Frank last_name: Walther - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler citation: ama: Riepold M, Arian B, Vasquez JR, Homberg W, Walther F, Trächtler A. Model approaches for closed-loop property control for flow forming. Advances in Industrial and Manufacturing Engineering. Published online 2021. doi:10.1016/j.aime.2021.100057 apa: Riepold, M., Arian, B., Vasquez, J. R., Homberg, W., Walther, F., & Trächtler, A. (2021). Model approaches for closed-loop property control for flow forming. Advances in Industrial and Manufacturing Engineering, Article 100057. https://doi.org/10.1016/j.aime.2021.100057 bibtex: '@article{Riepold_Arian_Vasquez_Homberg_Walther_Trächtler_2021, title={Model approaches for closed-loop property control for flow forming}, DOI={10.1016/j.aime.2021.100057}, number={100057}, journal={Advances in Industrial and Manufacturing Engineering}, author={Riepold, Markus and Arian, Bahman and Vasquez, Julian Rozo and Homberg, Werner and Walther, Frank and Trächtler, Ansgar}, year={2021} }' chicago: Riepold, Markus, Bahman Arian, Julian Rozo Vasquez, Werner Homberg, Frank Walther, and Ansgar Trächtler. “Model Approaches for Closed-Loop Property Control for Flow Forming.” Advances in Industrial and Manufacturing Engineering, 2021. https://doi.org/10.1016/j.aime.2021.100057. ieee: 'M. Riepold, B. Arian, J. R. Vasquez, W. Homberg, F. Walther, and A. Trächtler, “Model approaches for closed-loop property control for flow forming,” Advances in Industrial and Manufacturing Engineering, Art. no. 100057, 2021, doi: 10.1016/j.aime.2021.100057.' mla: Riepold, Markus, et al. “Model Approaches for Closed-Loop Property Control for Flow Forming.” Advances in Industrial and Manufacturing Engineering, 100057, 2021, doi:10.1016/j.aime.2021.100057. short: M. Riepold, B. Arian, J.R. Vasquez, W. Homberg, F. Walther, A. Trächtler, Advances in Industrial and Manufacturing Engineering (2021). date_created: 2021-08-23T13:23:05Z date_updated: 2023-12-15T09:39:21Z department: - _id: '156' - _id: '153' - _id: '241' doi: 10.1016/j.aime.2021.100057 language: - iso: eng main_file_link: - open_access: '1' oa: '1' publication: Advances in Industrial and Manufacturing Engineering publication_identifier: issn: - 2666-9129 publication_status: published quality_controlled: '1' status: public title: Model approaches for closed-loop property control for flow forming type: journal_article user_id: '36287' year: '2021' ... --- _id: '22965' author: - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Markus full_name: Riepold, Markus last_name: Riepold - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: 'Rozo Vasquez J, Arian B, Riepold M, Homberg W, Trächtler A, Walther F. Microstructural investigation on phase transformation during flow forming of the metastable austenite AISI 304 . In: 54. Metallographie-Tagung. ; 2020:75-81.' apa: Rozo Vasquez, J., Arian, B., Riepold, M., Homberg, W., Trächtler, A., & Walther, F. (2020). Microstructural investigation on phase transformation during flow forming of the metastable austenite AISI 304 . 54. Metallographie-Tagung, 75–81. bibtex: '@inproceedings{Rozo Vasquez_Arian_Riepold_Homberg_Trächtler_Walther_2020, title={Microstructural investigation on phase transformation during flow forming of the metastable austenite AISI 304 }, booktitle={ 54. Metallographie-Tagung}, author={Rozo Vasquez, Julian and Arian, Bahman and Riepold, Markus and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2020}, pages={75–81} }' chicago: Rozo Vasquez, Julian, Bahman Arian, Markus Riepold, Werner Homberg, Ansgar Trächtler, and Frank Walther. “Microstructural Investigation on Phase Transformation during Flow Forming of the Metastable Austenite AISI 304 .” In 54. Metallographie-Tagung, 75–81, 2020. ieee: J. Rozo Vasquez, B. Arian, M. Riepold, W. Homberg, A. Trächtler, and F. Walther, “Microstructural investigation on phase transformation during flow forming of the metastable austenite AISI 304 ,” in 54. Metallographie-Tagung, 2020, pp. 75–81. mla: Rozo Vasquez, Julian, et al. “Microstructural Investigation on Phase Transformation during Flow Forming of the Metastable Austenite AISI 304 .” 54. Metallographie-Tagung, 2020, pp. 75–81. short: 'J. Rozo Vasquez, B. Arian, M. Riepold, W. Homberg, A. Trächtler, F. Walther, in: 54. Metallographie-Tagung, 2020, pp. 75–81.' date_created: 2021-08-09T05:16:50Z date_updated: 2023-05-02T08:20:55Z department: - _id: '153' - _id: '241' - _id: '156' language: - iso: eng page: 75-81 publication: ' 54. Metallographie-Tagung' quality_controlled: '1' status: public title: 'Microstructural investigation on phase transformation during flow forming of the metastable austenite AISI 304 ' type: conference user_id: '36287' year: '2020' ...